The data we have chosen for this project is the Australian Road Deaths Database (ARDD) provided by the Australian Bureau of Infrastructure and Transport Research Economics (BITRE). The records are updated monthly from 1986 to 2021. Here is the link to the database : https://data.gov.au/dataset/ds-dga-5b530fb8-526e-4fbf-b0f6-aa24e84e4277/details.
There are two data files. The fatality data contains the demographic and details of people who have died within 30 days of the traffic accident due to injuries caused by an Australia road crash. The fatal crashes data contains the records for the crash, including information like the road type, and speed limit. The two data files can be connected by the crash ID. See Appendix for more detailed descriptions of each variable.
Q1: What demographic has a higher rate of traffic accidents?
Q2: Ranking of vehicle types by number of accidents
Q3: How does the car accident fatality link with the district and accident type?
Q4: Is there any correlation between accidents and holiday? And why are some explanations for the relation(s) or lack thereof.
Q5 :Has accident rate decreased or increased within the past decade (2010- 2020)?
Q6: Possible correlations between number of fatalities and speed limit zone
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## [1] 12 4 1 3Figure 3.1: The fatal crashes happen in Christmas period from 2018 to 2020
It can be seen from 3.1 that :
The number of crashes increases in VIC, WA and NSW in 2018 and 2019 respectively during Christmas period.
The OLD got a sudden decline in Christmas period of 2020, maybe due to the effectof COVID virus.
For other states, the crashes either fluctuated or drop. Therefore, there is no dominate correlation between crashes and Christmas.
Figure 3.2: The crashes in Easter period from 2018 to 2020
In Figure 3.2, in 2018, only WA has a slightly increase in Easter period. For Victoria, the number of crashes drops dramatically in March to April of 2018 and 2020. While other states fluctuate in these period. There is no clear correlation between cashes in Easter period in different states.
Figure 3.3: Fatal crashes happens by day and night
The Figure 3.3 compares the fatal crashes that happen in days and night. + Obviously, there are more crashes happen on the days than night.
There is more difference in ACT.
In NT, some crashes happens more at night than day in 2020, 2018, 2015.
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